New Bandwidth Selection for Kernel Quantile Estimators

Ali Al-Kenani and Keming Yu

Journal of Probability and Statistics, 2012, vol. 2012, 1-18

Abstract:

We propose a cross-validation method suitable for smoothing of kernel quantile estimators. In particular, our proposed method selects the bandwidth parameter, which is known to play a crucial role in kernel smoothing, based on unbiased estimation of a mean integrated squared error curve of which the minimising value determines an optimal bandwidth. This method is shown to lead to asymptotically optimal bandwidth choice and we also provide some general theory on the performance of optimal, data-based methods of bandwidth choice. The numerical performances of the proposed methods are compared in simulations, and the new bandwidth selection is demonstrated to work very well.

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnljps:138450

DOI: 10.1155/2012/138450

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